5/16-12 x 1 1/2 Unslotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc NS188B an indented hex washer head

an indented hex washer head for increased torque and grip

and a flange head for added strength

This 1/4-20 x 1 1/4" unslotted indented hex washer head machine screw is made of steel and has a black oxide finish

and other metalworking projects

it provides excellent strength and durability

5/16-12 x 1 1/2 Unslotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc NS188B an indented hex washer headThe 5 16 12 x 1 1 2 Unslotted Indented Hex Washer Self Tapping Screw Type AB Fully Threaded Zinc is a versatile fastener designed for use in various applications. It features a 5 16 inch diameter, 12 threads per inch, and a length of 1 1 2 inches. The unthreaded portion of the screw is fully threaded, providing maximum holding power. The indented hex washer head allows for easy driving and prevents the screw from slipping. The self tapping design